Kinodynamic Motion Planning: A Novel Type Of Nonlinear, Passive Damping Forces And Advantages
This work addresses kinodynamic motion planning for robots, offering an incremental improvement by combining existing harmonic fields with novel damping forces.
The paper tackles the problem of extending harmonic potential fields to handle both kinematic and dynamic aspects of robot motion by introducing nonlinear, anisotropic damping forces, resulting in a control signal that guides robots and manages dynamics without needing full system knowledge.
This article extends the capabilities of the harmonic potential field approach to planning to cover both the kinematic and dynamic aspects of a robot motion. The suggested approach converts the gradient guidance field from a harmonic potential to a control signal by augmenting it with a novel type of damping forces called nonlinear, anisotropic, damping forces. The combination of the two provides a signal that can both guide a robot and effectively manage its dynamics. The kinodynamic planning signal inherits the guidance capabilities of the harmonic gradient field. It can also be easily configured to efficiently suppress the inertia-induced transients in the robot trajectory without compromising the speed of operation. The approach works with dissipative systems as well as systems acted on by external forces without needing the full knowledge of the system dynamics. Theoretical developments and simulation results are provided in this article.